The Oracle GlassFish Message Queue is an integral part of the application
server. Oracle GlassFish Message Queue is a robust Java Messaging Service (JMS) provider
for JMS clients. Oracle GlassFish Message Queue is packaged with the Application Server
installation. See the installation guide for your version of Oracle GlassFish Message Queue
for information about Oracle GlassFish Message Queue. Implementation of HA for Oracle GlassFish
Message Queue does not assume the existence of programs on which your architecture
depends. Programs on which your architecture depends such as databases and web servers
should be configured to be highly available, but might run on a different
cluster.